Brave VPN subscription288

I had subscribed for one week trial but on 4th day I had cancel the subscription but even than the money was deducted from my bank account and even the subscription has not started.

@Ankitpatel2550,
Please submit a ticket to us on our Premium products form and someone will assist you as soon as possible:

Thank you

How am I suppose to do this , where can I find this forum?

I can’t find my premium product invoice . I did not receive mail , as the purchase was done through Google play store.